Unfortunately I don't know how they work, just that they do work and
very well in deed. I would guess it is some mechanical process similar
to Chinese finger cuffs or the wire pulling thingies similar thereunto
but I'm not a Mechanical Engineer. I have a good friend who has a MS in
Mechanical Engineering from UCLA plus over 35 years of hands on
experience who helped me install them on a 4-way guyed tower. I have
made him Bcc on this email and hopefully he will enlighten me so I can
pass it on. A lot of them in service and I have never heard of one
loosing its grip. Anyone ever know about one loosing its grip?
Patrick NJ5G
On 1/7/2016 12:49 PM, dw wrote:
I'm trying to understand the use of pre-formed wire-wrap dead-ends for
guy-wires.
If I understand the install process, the guy-wire itself doesn't wrap
around the lower anchor fixture.
But the dead-end goes into the lower anchor fixture and the dead-end
then wraps around the guy-wire.
First the guy-wire tension is pulled up to pre-tensioned position.
Then the dead-end is fed through the anchor fixture.
Then one leg of the dead-end is wrapped around the guy-wire...either
wrapped all the way or part way.
Then the other leg of the dead-end is wrapped.
And then the wrapping is complete....I think that approximates the
installation steps.
The question I have is, what is supposed to keep that wrapped dead-end
from slipping off the guy-wire?
Hard for me to believe it will grip the guy-wire just being wrapped
around it, especially when the guy wire is fully tensioned.
Why not put forged guy-wire clamps around the dead-end after its wrapped
to ensure it won't slip off the guy-wire?
What am I missing?
Also, companies like Hubbell and AED manufacture straight-type bolt-on
clamps that come in different lengths....like 6 inches with 3 bolts.
How does the bolt-on clamp assembly compare to the dead-end, in terms of
reliability and pull strength?
Thanks!
N1BBR :-]
_______________________________________________
_______________________________________________
TowerTalk mailing list
TowerTalk@contesting.com
http://lists.contesting.com/mailman/listinfo/towertalk
|